To ensure the lesson works as described, do these steps before beginning:
 . (If
            it is turned off, the icon has a large X across it).
 . (If
            it is turned off, the icon has a large X across it).
         Unless otherwise noted, the directions in this chapter for making menu selections assume you’ve already selected the Polygons menu set.
In this way you’ll have earlier versions of your work to return to should the need arise.